Head-mounted or face-mounted image display apparatus with an increased
exit pupil
    11.
    发明授权
    Head-mounted or face-mounted image display apparatus with an increased exit pupil 失效
    具有增加的出射光瞳的头戴式或面部安装的图像显示装置

    公开(公告)号:US5714967A

    公开(公告)日:1998-02-03

    申请号:US437790

    申请日:1995-05-09

    IPC分类号: G02B27/00 G02B27/01 G02B27/02

    摘要: An image display apparatus designed so that the observer can view the image of an image display device without the need of manually adjusting the positional relationship between the observer's eyeball and a bundle of rays from the image display device which is to be projected into the eyeball. A positional relationship detecting section (46) observes the pupil of an observer's eyeball (44) and its vicinities, and detects where a bundle of rays from an LCD (42) is being projected. If it is detected that the ray bundle is not coincident with the pupil, motors (52a and 52b) are driven to move a first support (50a) and a second support (50b), which support the LCD (42), a backlight (43), and an ocular lens (45), so that the ray bundle passes through the pupil.

    摘要翻译: 一种图像显示装置,其被设计成使得观察者能够观看图像显示装置的图像,而不需要手动调整来自将要投射到眼球中的图像显示装置的观察者的眼球和一束光线之间的位置关系。 位置关系检测部(46)观察观察者的眼球(44)及其附近的瞳孔,并检测来自LCD(42)的射线束的投影位置。 如果检测到光束与光瞳不一致,则驱动马达(52a和52b)以移动支撑LCD(42)的第一支撑件(50a)和第二支撑件(50b),背光( 43)和眼透镜(45),使得光束通过瞳孔。

    Head-mounted image display apparatus in which a system is capable of
changing aspect ratio of observed image
    12.
    发明授权
    Head-mounted image display apparatus in which a system is capable of changing aspect ratio of observed image 失效
    头戴式图像显示装置,其中系统能够改变观察图像的纵横比

    公开(公告)号:US5473365A

    公开(公告)日:1995-12-05

    申请号:US171620

    申请日:1993-12-22

    申请人: Toshiro Okamura

    发明人: Toshiro Okamura

    摘要: A head-mounted image display apparatus which is capable of selectively displaying images of normal and wide sizes efficiently by utilizing approximately all the pixels of a display device without the need of removing an optical system and which provides a bright image at high resolution and is easy to handle. The head-mounted image display apparatus has an image display device (2) for displaying an image, and a projection optical system for projecting the image displayed on the image display device (2) onto an observer's eye. The projection optical system includes an anamorphic optical system which is composed of an anamorphic lens (3) and a cylindrical lens (4), for example. The anamorphic optical system is rotatable about the optical axis. Accordingly, it is possible to selectively observe two images of the normal and wide sizes by rotating the anamorphic optical system about the optical axis through 90.degree. in either direction.

    摘要翻译: 一种头戴式图像显示装置,其能够通过利用显示装置的大致全部像素来有选择地显示正常和宽尺寸的图像,而不需要移除光学系统并且以高分辨率提供明亮的图像并且容易 处理。 头戴式图像显示装置具有用于显示图像的图像显示装置(2)和用于将显示在图像显示装置(2)上的图像投影到观察者眼睛上的投影光学系统。 投影光学系统包括例如由变形透镜(3)和柱面透镜(4)构成的变形光学系统。 变形光学系统可围绕光轴旋转。 因此,可以通过使变形光学系统围绕光轴在任一方向上旋转90°来选择性地观察正常和宽尺寸的两个图像。

    Wavelength selective switch
    13.
    发明授权
    Wavelength selective switch 有权
    波长选择开关

    公开(公告)号:US08634129B2

    公开(公告)日:2014-01-21

    申请号:US13497105

    申请日:2012-01-30

    IPC分类号: G02F1/29 G02B21/06 G02B6/26

    摘要: Provided is a wavelength selective switch which includes: at least one input port; a dispersive portion for dispersing wavelength-multiplexed light input from the input port into wavelength-demultiplexed lights; a condenser element for condensing the wavelength-demultiplexed lights dispersed by the dispersive portion; a deflection portion having deflection elements for deflecting, for each wavelength-demultiplexed light condensed by the condenser element; at least one output port for outputting the wavelength-demultiplexed lights deflected by the deflection portion. A light-condensing position shift compensating element is disposed in an optical path between the input port and the dispersive portion or in the dispersive portion, for compensating light-condensing position shift of the wavelength-demultiplexed lights relative to the deflection element, light-condensing position shift being generated based on the arrangement of the input ports.

    摘要翻译: 提供一种波长选择开关,其包括:至少一个输入端口; 用于将从输入端口输入的波分复用光分散成波长解复用光的色散部分; 聚光元件,用于冷凝由分散部分散射的波分解光; 偏转部分具有偏转元件,用于对于由聚光元件冷凝的每个波长解复用的光进行偏转; 至少一个输出端口,用于输出由偏转部分偏转的波长解复用光。 聚光位置偏移补偿元件设置在输入端口和色散部分之间或色散部分中的光路中,用于补偿波长解复用光相对于偏转元件的聚光位置偏移,聚光 基于输入端口的布置产生位置偏移。

    Magnetic fluid detection device
    14.
    发明申请
    Magnetic fluid detection device 审中-公开
    磁流体检测装置

    公开(公告)号:US20050148863A1

    公开(公告)日:2005-07-07

    申请号:US11006423

    申请日:2004-12-07

    IPC分类号: A61B5/04 A61B5/05

    摘要: A magnetic fluid detection device includes an exciting unit for generating an exciting magnetic field to excite a magnetic fluid staying in a subject, a coil for detecting a local distortion in magnetic field distribution occurring due to the magnetic fluid excited with the exciting magnetic field generated by the exciting unit, and a control unit for signal-processing an output from the coil and informing the resultant signal magnitude.

    摘要翻译: 磁流体检测装置包括:激励单元,用于产生励磁磁场以激励滞留在被检体内的磁性流体;线圈,用于检测由于由由 激励单元和用于信号处理来自线圈的输出并通知所得到的信号幅度的控制单元。

    Optical Angle detection apparatus
    16.
    发明授权
    Optical Angle detection apparatus 失效
    光学角度检测装置

    公开(公告)号:US5838432A

    公开(公告)日:1998-11-17

    申请号:US659220

    申请日:1996-06-07

    CPC分类号: G01B11/26

    摘要: An optical angle detection apparatus includes a light source section, a sensor section disposed separately from the light source section through a space, a timing controller, and a calculation processing section. The light source section includes a plurality of LEDs and a plurality of first polarizing plates whose polarizing directions differ from each other by 45.degree. in correspondence with the LEDs. The sensor section includes a lens and a two-dimensional PSD. The timing controller sequentially and periodically turns on the plurality of LEDs. The calculation processing section calculates the angle of the light source section relative to the sensor section around an axis determined by the light source section and the inclination angles of the sensor section in two axial directions with respect to the optical axis of the light source section on the basis of an output from the two-dimensional PSD which changes in accordance with the amount of light incident from the light source section onto the sensor section and the coordinates of an incident spot.

    摘要翻译: 光学角度检测装置包括光源部分,通过空间与光源部分分开设置的传感器部分,定时控制器和计算处理部分。 光源部分包括多个LED和与LED对应的偏振方向彼此相差45度的多个第一偏振片。 传感器部分包括透镜和二维PSD。 定时控制器顺序并周期地打开多个LED。 计算处理部分计算光源部分相对于传感器部分的角度,围绕由光源部分确定的轴线和传感器部分相对于光源部分的光轴在两个轴向方向上的倾斜角度 来自二维PSD的输出的基础,其根据从光源部分入射到传感器部分上的光量而变化,并且入射点的坐标。

    Liquid crystal display apparatus with a particular microlens array
    17.
    发明授权
    Liquid crystal display apparatus with a particular microlens array 失效
    具有特定微透镜阵列的液晶显示装置

    公开(公告)号:US5654810A

    公开(公告)日:1997-08-05

    申请号:US319604

    申请日:1994-10-07

    摘要: A liquid crystal display apparatus designed so that the viewing angle dependence is minimized without causing the displayed image to become unsharp. The liquid crystal display apparatus has a display surface (16) for displaying an image by a plurality of pixels, and a backlight (11) disposed at a side of the apparatus which is reverse to the display surface (16) to allow an approximately parallel light beam, which is approximately normal to the display surface (16), to enter each pixel of the display surface. A microlens array (20) is disposed at the viewing side of the display surface (16), and a diffusing element (21) is disposed in the vicinity of a surface conjugate with the display surface (16) which is formed by the microlens array (20).

    摘要翻译: 一种液晶显示装置被设计成使得视角依赖性最小化,而不会使显示的图像变得不清晰。 液晶显示装置具有用于通过多个像素显示图像的显示面(16),以及设置在与显示面(16)相反的一侧的背光源(11),允许大致平行 近似垂直于显示表面(16)的光束进入显示表面的每个像素。 微透镜阵列(20)设置在显示表面(16)的观察侧,并且漫射元件(21)设置在与由微透镜阵列形成的显示表面(16)共轭的表面附近 (20)。

    Wavelength selective switch
    19.
    发明授权
    Wavelength selective switch 有权
    波长选择开关

    公开(公告)号:US08761554B2

    公开(公告)日:2014-06-24

    申请号:US13419646

    申请日:2012-03-14

    IPC分类号: G02B6/26 G02B6/42

    CPC分类号: G02B6/3518 G02B6/3534

    摘要: Provided is a wavelength selective switch, which includes: an input/output unit; a dispersive portion; a condensing optical system; and the deflection portion. The input/output unit has input/output ports. The dispersive portion disperses signal light incident from the input/output ports. The condensing optical system condenses a plurality of signal light beams dispersed by the dispersive portion. The deflection portion has a plurality of deflection elements. The deflection elements deflect, along a second direction, the signal light beams condensed by the condensing optical system. In the condensing optical system, the aberration amount of the meridional component in a sagittal coma aberration remains substantially constant irrespective of an angle formed between the optical axis of the condensing optical system and a signal light beam incident on the condensing optical system from the input/output portion, at an incident position of the incident signal light beam at a certain height in the second direction.

    摘要翻译: 提供一种波长选择开关,其包括:输入/输出单元; 分散部分; 聚光光学系统; 和偏转部。 输入/输出单元具有输入/输出端口。 色散部分分散从输入/输出端口入射的信号光。 聚光光学系统凝聚由分散部分散射的多个信号光束。 偏转部分具有多个偏转元件。 偏转元件沿着第二方向偏转由聚光光学系统会聚的信号光束。 在聚光光学系统中,与聚光光学系统的光轴和入射到聚光光学系统的信号光束之间的角度不同,矢状彗差中的子午分量的像差量保持基本恒定, 在入射信号光束的入射位置处,在第二方向上处于一定高度。

    Illuminating Unit and Imaging Apparatus
    20.
    发明申请
    Illuminating Unit and Imaging Apparatus 审中-公开
    照明单元和成像设备

    公开(公告)号:US20080024868A1

    公开(公告)日:2008-01-31

    申请号:US11597098

    申请日:2005-06-06

    IPC分类号: G02B5/02

    摘要: There is provided a small sized imaging apparatus which can measure with high accuracy a color distribution of a surface of an object, in which a light intensity distribution on a predetermined surface in a direction substantially perpendicular to an optical axis is uniform, and a change in an amount of light in a direction along the optical axis is reduced, and an illuminating unit which used in this imaging apparatus. (The imaging apparatus) Includes a light source section (210) which supplies illuminating light, a diffusing section (211) which diffuses by reflecting the illuminating light from the light source section (210), and aperture sections (212a and 212b) which allow to emerge diffused illuminating light, and the aperture sections (212a and 212b) has an aperture diameter D which allows the diffused illuminating light to emerge as a substantially parallel light.

    摘要翻译: 提供了一种小尺寸的成像装置,其可以高精度地测量物体表面的颜色分布,其中在基本上垂直于光轴的方向上的预定表面上的光强度分布是均匀的, 沿着光轴的方向上的光量减少,并且在该成像装置中使用的照明单元。 (成像装置)包括:提供照明光的光源部(210),通过反射来自光源部(210)的照明光而扩散的漫射部(211);以及开口部(212a,212b) 允许出现扩散的照明光,并且孔部分(212a和212b)具有孔径D,其允许扩散的照明光作为基本平行的光出现。